Home / 12,879,772.29-17,774,512.02-7,078,759.65

Finding the Fourth Proportional to 12,879,772.29, 17,774,512.02 and 7,078,759.65

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Solution

The fourth proportional to 12,879,772.29, 17,774,512.02 and 7,078,759.65 is: 9,768,922.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,879,772.29 : 17,774,512.02 = 7,078,759.65 : x
  2. Step 2: Convert to fraction form
    12,879,772.29/17,774,512.02 = 7,078,759.65/x
  3. Step 3: Cross multiply
    12,879,772.29x = 17,774,512.02 × 7,078,759.65
  4. Step 4: Simplify right side
    12,879,772.29x = 125,821,498,485,616
  5. Step 5: Solve for x
    x = 125,821,498,485,616/12,879,772.29
  6. Step 6: Final answer
    x = 9,768,922.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.